Fill in Guitar is an instrumental piece by Romane performed with Romane’s Quartet. The arrangement is for an acoustic guitar quartet and is available as a Guitar Pro tab (gp4) as well as standard notation showing chords, rhythms, and parts. The excerpt features chords like G6 and D7 and is set in a 7/8 time signature, giving the tune a distinctive asymmetric groove. Descriptions in the sources label it as Romane’s Quartet work titled Fill in Guitar, with multiple guitar parts and chord symbols. The year of release, album name, and explicit genre are not provided in the supplied material.